Brake-shoe.



No. 822,924. PATENTED JUNE 12, 1966.

- 31 COLLIER.

BRAKE SHOE. AIPLIUATIOH FILED FEB. 38. 1905.

3 SHEETS-SHEET 1,

PATENTED JUNE 12, 1906.

7 E. P. 0013mm.

FRANK I. COLLIER, OF W'ILMETTE, ILLINOIS BRAKE-SHOE.

Specification of Letters Patent.

Patented June 12, 1906.

i Application filad February 20. 1905. Serial No. 246,3

To all whom it may concern.-

Be it known that l, FRANK I. Comma, a citizen of the United States, residing at Wilmette, in the county of (look and State of Illinois, have invented new and useful Improvements in Brake-Slims, of whirh the following is a specification.

This invention relates partivuhirly to composite brake-shoes of that type in which one or -1T10l'8 insert-blocks of a. difl'erent metal than that of the bod of the shoe is located in the wearing-fuse or the purpose of prolonging the life of the shoe or otherwise coauting with the metal of the body to produce certain results.

The objects of the invention are to secure-l y look and hold the insert-hlooks in the body of the shoe, to strengthen the shoe and provide means other than the body for (hurrying the;

insert-blocks, and to roinloroo and strengthen the att aehi ng-lu It will be understood that the invention can be mbodied in any of the numerous v11.- rieties of brake-shoes in ommon use, so for as it ma Y be adaptable thereto, without departing iiom the soope of my invention; and in the drawings l have shown samples of locomotive and on! shoes.

In the aoeonipanying drawings, Figure 1 is n perspeetive view of the plate carrying the inserts for a loconiolive-shoe. Figs. and 3 are longitudinal sertionnl views on the lines 2 2 and 3 3 of Fig. 4. sectional View on the lino 4 4 of liigs. 2 and 3. Figs. 5 and 6 are detail sm'tionnl viows showing different roost-motions for an nttnohinglug at the end of the shot. Fig. 7 is a. porspeetive view of a plate carrying the inserts for a oar-shoe. Figs. 8 and 9 are longitudinal central sectional views showing different embodiments of the invention. Figs. 19 end 12 are detail sectional views showing different constructions of the plate for forming the guide-lugs. Fig. 11 is a. transverse sectional view on the line 11 ll of Fig. 8. Fl 13 shows' two attaching-lugs and two pliites. Fig. 14 is a. sectional View on the lino 14 14 of Fig. 13'. lg. 15 is a sectional View on the line 15 15 of Fl 13. Fig. 16 is a View simi- 1a,! to Fig. 15, l aut without the plate at the flanged part of the shoe and showing the yokes form the entire attaching-lug.

The insertlooks 15 are cast upon or otherwise rigidly fastened to the'lips 16, which are out and stamped down from the back plate 17, and these insert-blocks are arranged to Fig. 4 is n trunsverse the end lug 30,

st one side of the flange.

completely close the openings 18 left in the plate by the downturned lips. The body portion 19 is then cast 11 on the inserts and .ngainst the under sideof t e book of the platcI- the plate being, somewhat shorter in lengtl. than the complete shoe so that the body metal may flow up around the ends of tho shoe to form the ond lug 20 and the EttaChinglug 21, Fig. 2. The lips 16 are dovetailed to hold the insert-bloeks securely in lane thereon, and the blocks are dove-toiled to form lllocking engagement withthe body ortion 19. Thus the insert-bloeks are locks to the back plate and the bod is looked to the blocks, so that the bark p ate, the blocks, and the body will all be securely looked together.

I may provide a. hook 22 at the end of the back plate, Figs. 1 and 2, as a lining for and to strengthen the lug 21. In Fig. 5 I have shown this hook continued at 23 over the top of the log, and in Fig. 6 I have shown the lu 24 formed entirely out of a part of the bacli plate, which is bent upon itself to make it strong and substantial.

The nttm hing-lug of oar-shoes is generally located rentrsillv between the ends thereof, and I provide the back 17, Fig. 7, with two upstanding yokes 25, cut and stamped out of the burl: to form an outside lining on each side of and to strengthen the cast part of the ing 26, Fig. 8, and protect it against accidentnl friu-tnre during the handling of the shoe. 'll1o,lips 27, left by stamping up the yokes, may he out out, as shown in Fig. 9, and the yokos may be embedded in the cast-iron part of the lug, if desired.

At oar-h end of the plate I may form an opening .28 by cutting and stamping down a lip 29, Figs. 7 and S, or by removing the lip entirely, Fig. 9, to permit the body metal to flow up and form the end lugs 30 and the end guides 31 on the shoe, or I may cut and stamp the plate at its ends to form an offset 32, which constitutes the end guide, Fig. 10, or this and guide may be formed by Cutting and stomping nip a lip 33 to lie adjacent to In Figs. 1 to 12: inclusive, I have shown a single note for each shoe, coverin substantially t e entire back of the body; ut I may make this plate in two parts 34 35, as shown in Figs. 13 to 15, inclusive, or I may employ a single late 36, as shown in Fi 16, located In Figs. 1 and 2 I have shown a shoe provided at one end with an attaching-lug and a bolt-hole 37 at its in han em lo the yokes 4(1alone, as shown inFig: 16.

n t e referred construction of the invention the ody will be made of soft cast-iron and the insert-blocks harder than the body to form a composite Wearing-faceforthe shoe;

but I do not confine myself to the use of any particular kind or grades of metals for the The interlocking en-- ody or the inserts. gagement of the body with the inserts and of the inserts with the lips on the backplate serves to hold the parts of the shoe together in case of fracture; and the plate serves to strengthen the shoe,-particularly when it is Worn thin. The hook, which-forms alining for the attaohin lug located at the ends of a shoe, as well as the yokes lining the attachinglng at the middle of the shoe, strengthens the lug and roteots it from being easily fractured tiling. The late is preferablynan rower than and em edded in the body, as

end to end thereof.

shown; but it may extend entirely across the shoe from side toside and substantially from The ends of the plate may be extended. through the ends of the shoe and cut out in the manner shown in Fig. 9. I Ina make this plate of steel, wroughtiron, ma leable'iron, or any other suitable material, and it may carry any number of inserts disposed and arranged thereon in any desired manner.

Without limiting myself to the exact constrnetionand arrangement of parts herein shown and. described, what I claim, and desire to secure b Letters Patent, is

1. A brake-s oe comprising a back plate, lips out and stamped down from said plate, inserts 'locked on said lips and closing the openings in said plate, and abody cast around said inserts.

2. A brake-shoe comprising a back plate, a plurality of dovetailed inserts carried by -sa1d plate, a pair of yokes cut and stamped up from'said plate, and a body cast around said inserts. I

3. A brakeshoe comprising a back plate, lips out and stamped down from said plate, inserts lockedon saidlips and closing the openings in said plate, a bodycast around said inserts, and a air of yokes out and stamped up from said plate.

FRANK PzCOLLIER. \Vitnesses:

O. BELT, M. A. Kmmn. 

